Home / 250,139.68-345,196.56-136,972.96

Finding the Fourth Proportional to 250,139.68, 345,196.56 and 136,972.96

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Solution

The fourth proportional to 250,139.68, 345,196.56 and 136,972.96 is: 189,024.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,139.68 : 345,196.56 = 136,972.96 : x
  2. Step 2: Convert to fraction form
    250,139.68/345,196.56 = 136,972.96/x
  3. Step 3: Cross multiply
    250,139.68x = 345,196.56 × 136,972.96
  4. Step 4: Simplify right side
    250,139.68x = 47,282,594,605.02
  5. Step 5: Solve for x
    x = 47,282,594,605.02/250,139.68
  6. Step 6: Final answer
    x = 189,024.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.